Spring pin lock slider for separable fastener stringers



April 1953 L. H. MORIN SPRING PIN LOCK SLIDER FOR SEPARABLE FASTENERSTRINGERS Flled March 20, 1950 INVENTOR LOUIS H.MORIN nu; IHHIM ATTORNEYPatented Apr. 14, 1953 UNITED STATES PATENT OFFICE SPRING PIN LOCKSLIDER FOR SEPARABLE FASTENER STRINGERS Louis H. Morin, Bronx, N. Y.

Application March 20, 1950, Serial No. 150,652

5 Claims. 1

This invention relates to what are known as sliders foruse in connectionwith separable fastenerstringers for coupling and uncoupling thestringers. More particularly, the invention deals with sliders 'of thespring pin lock type, wherein the lo ckpin, including the hinge pins,are integrally cast with the pull.

invention are disclosed and, in which the separate parts are designatedby suitable reference characters in each of the views and, in which:

Fig. l'is a perspective view showing the slider and pull in spacedrelationship to each other, preparatory to assemblage of the parts.

Fig. 2 is a bottom plan view of one end of the pull, prior to assemblageof a spring therewith.

Fig. 3 is a view similar to Fig. 2 showing the spring assembled. I

Fig. 4 is a section on the line 44 of Fig. 3.

Fig. 5 is a plan view showing the assemblage of the slider and pull,illustrating one end portion only of the parts and with the pull inclosed position; and

Fig. 6 is a sectionv substantially on the line Ii 6 of Fig. 5.

'fIn devices of the kind under consideration, considerable time andeliort is required in the assemblage of the parts, which results inmaterially adding to the cost of producing sliders having spring pinlock pulls. One of the real dificulties in this connection has been thehandling and'assemblage of the spring. The purpose of my invention is tosimply and economically produce the slider and pull end to so constructthese parts as to simplify assemblage of the spring in the pull andassemblage of the pull with the slider.

In Fig. 1 of the drawing, I have shown at If] and II slider and pullparts, respectively, in spaced relationship to each other, preparatoryto assemblage of these parts. The slider I comprises a" top plate I2,bottom plate I3, joined at the wide end of the slider in a connectingweb, asseen at I4, in Fig. 6 of the drawing. Theto-p wall l2 of theslider has, at the wide end thereof, U-shaped bearing members I5, thesockets I6 of which are normally open to receive outwardly protrudingintegral hinge pin portions H on the part II, as will clearlyappearfronra consideration of Figs. 1 and of the Between the bearingsi5, the top wall of the Still more particularly, the invention deals,with devices of this' slider has a transverse groove I8 for receivingthe transverse hood portion I9 of the pull II. The wall I2 also has alongitudinally extending aperture 20 which extends into the groove por--tion I8 and opens into the channel 2| of the slider ID to give access tothe stringer scoops of a separable fastener, on which devices of this.kind are commonly used. The stringers are not shown, as these arewell-known in the art.

The aperture 20 is located adjacent one of the; bearings I5 and,adjacent the other bearing I5, the wall I2 has an aperture 22 to receiveone. end 2-3 of a coil spring 24. The pull II is normally formed in themanner illustrated in Fig.

2 of the drawing andthe rounded hood portion I9 has, at its ends, wallportions 25 and pro jecting side ears or tongues 26, which normally;extend upwardly to give free access to the chambar or recess 21 withinthe hood I9. This facil- 24 into the recess between the ears or tongues26. The pull II has a longitudinally extending recess 28 which opensinto the recess 21 and is bordered by a raised wall or flange portion ofU-shaped form, as seen at 29, and this wall or flange portion is adaptedto be peened-over, as seen at 30 in Fig. 3, in securing the other end 23of the spring 24 on the slider I I. In other words, it will be apparentthat, in assembling the spring with the pull II, the spring 24 isdropped into the recess 21 with the end 23 in the recess 28 and in asingle operation, the wall or flange 29. is peened-over, as at 30, andthe ears or tongues 25 are bent inwardly, in the manner illustrated inFigs. 3 and 4 to secure the spring against displacement from the recess.

or socket 21.

.It will also appear that the hood I9 is recessed adjacent one of theWalls 25, as at 3|, to receive the end 23 of the spring 24 and anotherrecess 32 is provided adjacent the other wall 25,

so as to definitely define the ears or tongues 26 and facilitate theirbending-over for engagement with the spring 24. The wall 25, adjacentthe recess 32, has a projecting lock pin portion 33, which is adapted topass through the aperture 20 to engage a scoop of a stringer disposed inthe channel 2| of the slider I2. It will be noted from a considerationof Fig. 1 of the drawing that the wall 25 having the pin 33 thereon hasan extended portion 34 for strengthening the pin 33.

After the spring 24 has been assembled'with the pull, in the manner seenin Figs. 1 and 3, the

spring end 23 can be swung into the dotted line position of Fig. 1, orthe full line position of Fig.- 3, and then the assemblage placed uponthe slider I0 with the pintle bearing pins I! in the sockets I6, afterwhich the side walls I5 of the bearings I5 can be forced inwardly toengage the bearings i I! in the manner clearly illustrated in Fi of thedrawing. Also, by appropriately positioning the pull (containing thespring in recess 21) with respect to the slider, the wall 29 may bepeened over, the ears 26 bent inwardly, and the side walls l5 of thebearings I 5 forced about the bearing pins H in one pressing stroke.

From the foregoing, it will beapparentthat the slider l0 and pull II canbe formed as die cast members with the blanks of each part, as shown inFigs. 1 and 2, and the assemblage of the spring end parts accomplishedas statedibefore. In this Way, the complete spring pin lock slider isproduced very economically. The spring normally tensions the pull tomaintain a locked position, thus producing an automatic lock slider and,in the operation of the slider, the pull is raised against the tensionof the spring in moving the slider along the stringers to'couple and'uncouple the-same.

Having fully described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A three-piece slider consisting of a slider body, apull, and a coilspring, said pull having an enlarged portion at one end, a channel insaid enlarged portion extending transversely of the pull, said channelbeing defined by a pair of end walls and by a pair of transverselyextending side walls, the latter being substantially equal in length tothe length of the channeL'said end and side walls being integral withthe pull, said end walls completely closing off the ends of the channeland each said end wall having an integral axle portion whose lengthextends only from the outer end face of each'said end wall to a pointspaced outwardly of'an adjacent to said end face, said coil spring beingdisposed in the channel as the sole structure occupying said channel,said spring having one end anchored to the pull, said transverselyextending sidesof the channel being deformed about the spring to retainthe latter in the channel, a lock element extending from one of said endwalls, a pair of bearings on a wall of the slider for receiving saidaxle portions, each said bearing having a portion thereof deformed aboutthe corresponding axle portion to rotatably retain the latter in thebearing, a concave recess on said slider "wall extending transverselythereof between said bearings for receiving the said enlarged portion ofthe pull, an aperture in said slider wall for receiving said lockelement, and a second aperture in said slider wall for receiving theother end of said spring.

2. In a slider of the class described, the combinationo'f a slider bodyand a pull therefor, said pull having an enlarged portion at one end, achannel in said enlarged ortion extending transversely of the pull, saidchannel being defined by a pair of end walls and by a pair oftransversely extending side walls, said end and side walls beingintegral with the pull, said end walls closing off the ends of thechannel and each said end wall having an axle portion extendingoutwardly therefrom, 'a spring in the channel as the sole structureoccupying said channel, said spring having one end anchored to the pull,at least one of said transversely extending sides of the channel beingdeformed about the spring to retain the latter in the channel, a lockelement extending from one of said end walls, a pair of bearings on awall of the slider for receiving said axle ortions, each said bearinghaving a portion thereof deformed about the corresponding axle portionto rotatably retain the latter in the channel in said enlarged portionextending transversely of the pull, said channel being defined by a pairof end walls and by a pair of transversely extending side walls, saidend'walls closing 01f the ends of the channel and each said end wallhaving an axle portion extending outwardly therefrom, a spring in thechannel as the sole structure occupying said channel,

said spring being in engagement with the pull and with the slider body,at least one of said transversely extending sides of the 'ohamrelbeingdeformed about the "spring to retain the latter in the channel, a pairof be'arings on -a wall1of the slider for receiving said axle portions,each said bearing having "a portion thereof "deformed about thecorresponding axle portion to rdtatably retain the latter in thebearing. 7

4. In a, slider of the class "described, the combination of a sliderbody and a pull therefor, said pull having an enlarged portion atoneend, a channel in said enlarged "portion extending transversely of thepull, said channel 'being'fdefined by a pair of end walls and "by 'apair :of transversely extending side walls, said end walls closing offthe ends of the channel and each said end wall having an integral axleportion whose length extends only from the outer end face of each saidend wall "to'a point spaced out-- wardly of and adjacent to said endface. a spring in said channel, said spring being in'engagemen't withthe pull and with the slider body, said transversely extending sides ofthe channel being deformed about the spring to retain the latter in thechannel, a pair of hearings on a wall of the slider for receiving saidaxle portions, each said bearing having a portion thereof deformed aboutthe corresponding axle portion to rotatably retain the latter in thebearing.

5. A three-piece slider consisting of a slider body, a pull, and aspring, said pull :having a rounded edge portion at one end, atransverse channel in said rounded portion defined by end and sidewalls, said end and side walls being integral with the pull, a spring inthe channeL-said spring being in engagement with the ,pull and with theslider body, at least one of :said side walls of the channel beingdeformed about the spring to retain the same .in the channel, axleportion extending from each .said end wall, the axle portion having alength extending only from the outer end face of said end wall tea pointspaced outwardly -.of and adjacent to said end face, a lock element onthe ,pullladjacent one end of the channel, and a 'pair (of bearings en awall of the slider for receiving said axle 3P0?- tions.

LOUIS H. MORIN.

References Cited in the file of this patent

